3 Bible Verses about Walled Towns

having a wall great and high; having twelve gates, and at the gates twelve angels, and names written thereon, which are the names of the twelve tribes of the sons of Israel;

And he measured the wall thereof, a hundred and fortyfour cubits, according to a mans measure, which is that of an angel.

And the wall of the city had twelve foundationstones, and on them the twelve names of the twelve apostles of the Lamb.